Sampling equipment for monitoring soil environment

Abstract

The invention relates to the technical field of soil sampling, and provides sampling equipment for soil environment monitoring, the sampling equipment comprises a support, a sampling pipe and a base, a driving mechanism is connected in the support, one end of the sampling pipe is connected with the driving mechanism, the base is fixedly connected to one side of the support, and the sampling pipe is connected with the base. A collecting mechanism is mounted at the top of the base, and a storage cylinder is mounted on one side of the base; after a second branch pipe at the top and a second branch pipe in the middle are separated from each other, a first circular plate loses control of a second circular plate, soil pushes a first circular plate to move in the direction of a limiting plate through a turnup part of the first circular plate, the first circular plate blocks the ends of the second branch pipes, so that the soil can only be located in the second branch pipes, and all the second branch pipes are separated from each other; the soil in different soil layers is separated, the soil in each soil layer is not polluted, and meanwhile, the sand content and the water content of the soil in different depths are more conveniently detected.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a sampling device used for soil environment monitoring. Background Art

[0002] Soil environmental monitoring refers to an important measure to understand the status of soil environmental quality. It aims to prevent the harm of soil pollution and conducts dynamic analysis and measurement of the degree and development trend of soil pollution. It includes investigations on the current status of soil environmental quality, investigations on regional soil environmental background values, investigations on soil pollution accidents and dynamic observations of polluted soil. Soil environmental monitoring generally includes steps such as preparation, site layout, sampling, sample preparation, analysis and testing, and evaluation, especially the sampling step. The quality of the samples taken directly affects the later monitoring of the soil.

[0003] At present, the general method of soil monitoring is to measure the soil through regular sampling and testing. When sampling, the sampling tube is drilled into the soil layer, and then the sampling tube is pulled out. The sampling tube carries the soil in the soil layer out of the soil layer, and then the sampling and testing are carried out regularly according to the monitoring requirements, thereby realizing the monitoring of the soil. However, the sampling tube cannot distinguish the soil in different layers after being drilled into the soil layer, which easily causes sampling contamination, and it is also not convenient for the sampling tube to perform secondary operations. Summary of the invention

[0004] The present invention provides a sampling device for soil environment monitoring. Through the snap-fit ​​connection between each second branch pipe and the impact force of the soil, each second branch pipe is separated from each other after being filled with soil, thereby storing soil in different soil layers in different zones to prevent mutual contamination between soils, thereby solving the problems existing in the background technology.

[0005] The technical solution of the present invention is as follows:

[0006] A sampling device for soil environment monitoring comprises: a bracket, a sampling tube and a base, wherein a driving mechanism is connected in the bracket, one end of the sampling tube is connected to the driving mechanism, the base is fixedly connected to one side of the bracket, a collecting mechanism is installed on the top of the base, and a storage cylinder is installed on one side of the base.

[0007] Furthermore, the driving mechanism includes a gasoline engine, a slider and a weight block, the output end of the gasoline engine vertically passes through the slider and is fixedly connected to the top end of the sampling tube, the weight block is fixedly connected to the slider, a ratchet bar is provided on the side of the bracket connected to the slider, a square hole is provided on the side of the slider connected to the bracket, the end of the slider away from the gasoline engine is slidably connected to the bracket, a ratchet is provided on the end of the weight block connected to the ratchet bar, the ratchet bar is meshed with the ratchet teeth, and the weight block is slidably connected to the ratchet bar to control the upward impact force of the sampling tube.

[0008] Furthermore, the sampling tube is provided with a first branch tube and a second branch tube, the end of the first branch tube facing the ground is fixedly connected with a threaded sleeve, the end of the threaded sleeve away from the first branch tube is surrounded by a sharp corner, the first branch tube is threadedly connected to the sampling tube, and the end of the first branch tube away from the ground is rotatably connected with a circular plate 1, a limit plate is provided on the top of the circular plate 1, the limit plate is fixedly connected to the first branch tube, the first branch tube and the second branch tube are both provided with a circular plate 1, the circular plate 1 is respectively connected to the first branch tube The inner wall of the tube is rotatably connected with the inner wall of the second branch pipe, the limit plate is annular and the inner diameter is smaller than the outer diameter of the circular plate one, the limit plate is a magnet, a circular plate two is arranged at the bottom of the circular plate one, the circular plate two is rotatably connected with the inner wall of the second branch pipe, the circular plate two extends into the first branch pipe and bends in the opposite direction of the tilting of the circular plate two; an inclined block is fixedly connected to the inner wall of the top end of the sampling tube, the sampling tube is provided with an outlet on one side of the inclined block, and a transport plate is fixedly connected to a side of the outlet away from the inclined block.

[0009] Furthermore, an arc-shaped groove is provided at the connection between the first branch pipe and the second branch pipe, and square blocks are fixedly connected to the inner walls at both ends of the arc-shaped groove, a spring 1 is fixedly connected inside the square block, and a ball is fixedly connected to the end of the spring 1 away from the square block; the second branch pipe is fixedly connected to a clamping block at the arc-shaped groove, and the middle parts of both sides of the clamping block are recessed inward.

[0010] Furthermore, the collecting mechanism includes a motor, a fixed block and a disc, the motor is fixedly connected to the base, the fixed block is arranged on one side of the motor, the fixed block is fixedly connected to the base, a turntable 1 is arranged on the top of the disc, the turntable 1 is fixedly connected to the output end of the motor, a plurality of protrusions are fixedly connected to the circumference of the turntable 1, each of the protrusions is fixedly connected to a rotating shaft, one end of the rotating shaft is rotatably connected to an electromagnet, the end of the electromagnet away from the rotating shaft is rotatably connected to turntable 2, the bottom of the fixed block is rotatably connected to turntable 2, and turntable 2 is rotatably connected to a plurality of electromagnets.

[0011] Furthermore, a plurality of collecting boxes are connected to the outer side of the disc, a spring 2 is fixedly connected to the other side of the same surface where the electromagnet is connected to the rotating shaft, a magnetic disk is fixedly connected to the end of the spring 2 away from the electromagnet, and an outer diameter of the magnetic disk is smaller than an inner diameter of the limiting plate, so that the magnetic disk can enter the second branch pipe easily.

[0012] Furthermore, the storage tube is fixedly connected to one side of the base, the opening of the storage tube is located on one side of the turntable one, and the opening of the storage tube is lower than the turntable one.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. After the second branch pipe at the top is separated from the second branch pipe in the middle, the circular plate 1 loses the control of the circular plate 2, and the soil pushes the circular plate 1 to move toward the limit plate through the raised part of the circular plate 1. The circular plate 1 blocks the end of the second branch pipe so that the soil can only be located in the second branch pipe. Each second branch pipe is separated from each other, so that the soil in different soil layers is separated, and the soil in each soil layer will not be polluted. At the same time, it is more convenient to detect the sand content and water content of the soil at different depths.

[0015] 2. When the present invention is connected to the electromagnet through the limit plate, the magnetic disk is forced to bounce in the direction away from the limit plate, and at the same time, the circular plate is pushed to rotate in the direction away from the limit plate, and the soil in the second branch pipe is pushed out of the second branch pipe. When the circular disk rotates, the collecting box is driven to rotate, and the collecting box is located directly below the magnetic disk, so that the soil falls into the collecting box. Since a plurality of collecting boxes are arranged on the circular disk, the soil in each second branch pipe can be collected separately in different collecting boxes to prevent the soil from different soil layers from being mixed. In addition, the method of collecting soil reduces the workload of the staff, so that the staff does not need to open the sampling tube and take out the soil in the sampling tube by hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a stereogram of the device of the present invention;

[0017] Figure 2 It is the internal structure diagram of the device of the present invention;

[0018] Figure 3 It is a structural diagram of the collecting mechanism of the device of the present invention;

[0019] Figure 4 is a cross-sectional view of the collecting mechanism of the device of the present invention;

[0020] Figure 5 The present invention Figure 2 Enlarged view of point A in the middle;

[0021] Figure 6 It is a structural diagram of the sampling tube of the device of the present invention;

[0022] Figure 7 It is a cross-sectional view of the sampling tube of the device of the present invention.

[0023] In the figure:

[0024] 1. Bracket; 2. Driving mechanism; 21. Gasoline engine; 22. Sliding block; 23. Weight block; 251. Ratchet; 24. Ratchet bar; 25. Square hole; 3. Sampling tube; 31. First branch; 311. Arc groove; 312. Square block; 313. Spring 1; 314. Ball; 32. Threaded sleeve; 33. Round plate 1; 34. Limit plate; 35. Second branch; 351. Block; 36. Round plate 2; 37. Tilted block; 38. Transport plate; 4. Base; 5. Collecting mechanism; 51. Motor; 52. Fixed block; 53. Disc; 531. Collecting box; 54. Turntable 1; 55. Rotating shaft; 56. Electromagnet; 561. Spring 2; 562. Disk; 57. Turntable 2; 6. Storage tube. DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] like Figure 1-7 As shown, the present invention provides a sampling device for soil environment monitoring, including: a bracket 1, a sampling tube 3 and a base 4, wherein a driving mechanism 2 is connected to the bracket 1, one end of the sampling tube 3 is connected to the driving mechanism 2, the base 4 is fixedly connected to one side of the bracket 1, a universal wheel is installed on the side of the base 4 facing the ground, so as to facilitate the movement of the device, an armrest is arranged on the base 4, a collecting mechanism 5 is installed on the top of the base 4, and a storage cylinder 6 is installed on one side of the base 4.

[0027] As a technical solution of the present invention, the driving mechanism 2 includes a gasoline engine 21, a slider 22 and a weight 23. The output end of the gasoline engine 21 vertically passes through the slider 22 and is fixedly connected to the top of the sampling tube 3. The weight 23 is fixedly connected to the slider 22. A ratchet bar 24 is provided on the side of the bracket 1 connected to the slider 22. A square hole 25 is provided on the side of the slider 22 connected to the bracket 1. The end of the slider 22 away from the gasoline engine 21 is slidably connected to the bracket 1. A ratchet 251 is provided on the end of the weight 23 connected to the ratchet bar 24. The ratchet bar 24 meshes with the ratchet 251. The weight 23 is slidably connected to the ratchet bar 24 to control the upward impact force of the sampling tube 3.

[0028] As a technical solution of the present invention, the sampling tube 3 is provided with a first branch tube 31 and a second branch tube 35. The end of the first branch tube 31 facing the ground is fixedly connected with a threaded sleeve 32. The end of the threaded sleeve 32 away from the first branch tube 31 is surrounded by a sharp corner. The first branch tube 31 is threadedly connected to the sampling tube 3, and the end of the first branch tube 31 away from the ground is internally rotatably connected with a circular plate 33. A limit plate 34 is provided on the top of the circular plate 33. The limit plate 34 is fixedly connected to the first branch tube 31. The first branch tube 31 and the second branch tube 35 are both provided with a circular plate 33. The circular plate 33 is respectively connected to the first branch tube 31 and the second branch tube 35. The inner wall of the first branch pipe 31 and the inner wall of the second branch pipe 35 are rotatably connected, the limit plate 34 is annular and the inner diameter is smaller than the outer diameter of the circular plate 1 33, the limit plate 34 is a magnet, a circular plate 2 36 is provided at the bottom of the circular plate 1 33, the circular plate 2 36 is rotatably connected to the inner wall of the second branch pipe 35, the circular plate 2 36 extends into the first branch pipe 31 and bends in the opposite direction of the tilting of the circular plate 2 36; an inclined block 37 is fixedly connected to the inner wall of the top end of the sampling tube 3, and the sampling tube 3 is provided with an outlet on one side of the inclined block 37, and a transport plate 38 is fixedly connected to the side of the outlet away from the inclined block 37.

[0029] As a technical solution of the present invention, an arc groove 311 is provided at the connection between the first branch pipe 31 and the second branch pipe 35, and square blocks 312 are fixedly connected to the inner walls at both ends of the arc groove 311, and a spring 1 313 is fixedly connected inside the square block 312, and a round ball 314 is fixedly connected to the end of the spring 1 313 away from the square block 312; the second branch pipe 35 is located at the arc groove 311 and is fixedly connected with a clamping block 351, and the middle parts of both sides of the clamping block 351 are concave inward, so that the spring 1 313 can push the round ball 314 to control the clamping block 351, thereby making the second branch pipe 35 engage and connect with the first branch pipe 31.

[0030] As a technical solution of the present invention, the collecting mechanism 5 includes a motor 51, a fixed block 52 and a disc 53, the motor 51 is fixedly connected to the base 4, the fixed block 52 is arranged on one side of the motor 51, the fixed block 52 is fixedly connected to the base 4, a turntable 54 is arranged on the top of the disc 53, the turntable 54 is fixedly connected to the output end of the motor 51, a plurality of protrusions are fixedly connected on the circumference of the turntable 54, each of the protrusions is fixedly connected with a rotating shaft 55, one end of the rotating shaft 55 is rotatably connected to an electromagnet 56, the end of the electromagnet 56 away from the rotating shaft 55 is rotatably connected to a turntable 2 57, the bottom of the fixed block 52 is rotatably connected to a turntable 2 57, and the turntable 2 57 is rotatably connected to a plurality of electromagnets 56.

[0031] As a technical solution of the present invention, a plurality of collecting boxes 531 are connected to the outer side of the disc 53, a spring 2 561 is fixedly connected to the other side of the same surface where the electromagnet 56 is connected to the rotating shaft 55, and a magnetic disk 562 is fixedly connected to one end of the spring 2 561 away from the electromagnet 56, and an outer diameter of the magnetic disk 562 is smaller than an inner diameter of the limiting plate 34, so as to facilitate the magnetic disk 562 to enter the second branch pipe 35.

[0032] As a technical solution of the present invention, the storage tube 6 is fixedly connected to one side of the base 4 , the opening of the storage tube 6 is located on one side of the turntable 1 54 , and the opening of the storage tube 6 is lower than the turntable 1 54 .

[0033] Working principle:

[0034] First, if Figure 1-2 As shown, the staff pushes the handrail to rotate the universal wheel, and then pushes the device to the position where sampling is required, and then starts the gasoline engine 21 to drive the sampling tube 3 to rotate and drill into the ground, and the gravity of the weight block 23 drives the slider 22, the gasoline engine 21 and the sampling tube 3 to press toward the ground, providing downward gravity for the sampling tube 3, so that the sampling tube 3 can be extended into the soil; because the part where the weight block 23 and the ratchet bar 24 are connected is provided with ratchet teeth 251 and meshes with each other, when the sampling tube 3 impacts the ground, the weight block 23 slides on the ratchet bar 24 and controls the upward impact force of the sampling tube 3, freeing the staff's hands, so that the staff no longer needs to press the gasoline engine 21 with their hands.

[0035] Then, if Figure 3 and Figure 5-7As shown, when the sampling tube 3 moves toward the ground, soil enters the sampling tube 3. The downward impact force of the sampling tube 3 causes the soil to pass through the first branch tube 31 and several middle second branch tubes 35 in the sampling tube 3 to reach the second branch tube 35 at the end. As the sampling tube 3 continues to descend, the amount of soil collected in the sampling tube 3 gradually increases, thereby pushing the top second branch tube 35 to move toward the inclined block 37. When the top second branch tube 35 moves along the inclined surface of the inclined block 37, the second branch tube 35 pulls the block 351 to move in the same direction. At this time, the protruding part at the end of the block 351 slides on the ball 314, causing the ball 314 to compress the springs 1 313 on both sides, thereby causing the space between the two balls 314 to be As the spacing becomes larger, the block 351 continues to move until it is separated from the ball 314. At this time, the second branch pipe 35 at the top is separated from the second branch pipe 35 in the middle, and the circular plate 2 36 follows the second branch pipe 35 at the top and moves away from the second branch pipe 35 in the middle. In the process of the second branch pipe 35 being pushed out from the outlet opened on one side of the sampling tube 3 and moved onto the transport plate 38, the transport plate 38 squeezes the circular plate 2 36 extending from the second branch pipe 35. Since the circular plate 2 36 is rotatably connected to the inside of the second branch pipe 35, the circular plate 2 36 is pushed to rotate, thereby closing the bottom end of the second branch pipe 35 to prevent the soil inside the second branch pipe 35 from leaking onto the transport plate 38, thereby contaminating the soil in the second branch pipe 35 of the next part.

[0036] It should be noted that: the circular plate 1 33 in the second branch pipe 35 at the top is connected to the inner wall of the second branch pipe 35 at the beginning, and the circular plate 2 36 extends into the middle second branch pipe 35 and presses the circular plate 1 33 in the second branch pipe 35, so that both are in contact with the inner wall of the middle second branch pipe 35; when the second branch pipe 35 at the top and the middle second branch pipe 35 are separated from each other, the circular plate 1 33 in the middle second branch pipe 35 loses the control of the circular plate 2 36, and when the soil moves behind the second branch pipe 35, the raised part of the circular plate 1 33 pushes the circular plate 1 33 to the limit The circular plate 33 moves in the direction of the limiting plate 34. Since the outer diameter of the circular plate 1 33 is larger than the inner diameter of the limiting plate 34, the edge of the circular plate 1 33 fits with the inner wall of the limiting plate 34 and cannot continue to rotate, and the end of the second branch pipe 35 is blocked, so that the soil can only be located in the second branch pipe 35, and the above steps are repeated to continue to impact the second branch pipe 35. Each second branch pipe 35 is separated from each other by this method, so that the soil in different soil layers is separated, and the soil in each soil layer will not be contaminated. At the same time, it is more convenient to detect the sand content and water content of the soil at different depths.

[0037] Then, if Figure 2-5As shown, when the next second branch pipe 35 is pushed onto the transport plate 38, the second branch pipe 35 pushes the previous second branch pipe 35 to move towards the direction close to the turntable 1 54. At this time, the motor 51 is started, the disc 53 is started to rotate, and the turntable 1 54 is driven to rotate, and at the same time, the shaft 55 and the end of the electromagnet 56 connected to the shaft 55 are driven to rotate, so that the other end of the electromagnet 56 follows the rotation and drives the turntable 2 57 to rotate. At this time, the electromagnet 56 is in an on state, so that the magnetic disk 562 moves toward the electromagnet 56 and compresses the spring 2 561. When the turntable 1 54 rotates the contact point between the electromagnet 56 and the magnetic disk 562 to the top of the second branch pipe 35, the magnetic attraction limit plate 34 of the electromagnet 56 is connected to the electromagnet 56. Since the magnetic force of the magnetic disk 562 is weaker than that of the limit plate 34, when the limit plate 34 is attracted by the electromagnet 56, the magnetic disk 562 cannot prevent the connection between the two. And because the limit plate 34 and The magnetic disk 562 repels each other. When the limit plate 34 is connected to the electromagnet 56, the magnetic disk 562 passes through the opening on the limit plate 34 into the second branch pipe 35 and squeezes the soil, thereby driving the circular plate 1 33 and the circular plate 2 36 to flip, and then opening the bottom of the second branch pipe 35, so that the soil flows out of the second branch pipe 35. Since the collection box 531 is driven to rotate when the circular disk 53 rotates, and the collection box 531 is located directly below the magnetic disk 562, the soil falls into the collection box 531. Since a plurality of collection boxes 531 are arranged on the circular disk 53, different second branch pipes 35 will be respectively adsorbed by different electromagnets 56, so that the soil in each second branch pipe 35 can be separately collected in different collection boxes 531, so as to prevent the soil in different soil layers from being mixed up. In addition, this method of collecting soil reduces the workload of the staff, so that the staff does not need to open the sampling tube 3 and take out the soil in the sampling tube 3 by hand.

[0038] Finally, if Figure 5-7 As shown, since the turntable 1 54 and the turntable 2 57 are not vertically arranged but partially misaligned, when the second branch pipe 35 rotates to one side of the turntable 1 54, the side of the disk 53 pushes the bottom of the second branch pipe 35 to move away from the electromagnet 56, and pushes the switch of the electromagnet 56 there, so that the electromagnet 56 loses its magnetic force, and the limit plate 34 loses the magnetic attraction with the electromagnet 56, so that the two are separated. At the same time, the spring 2 561 pulls the magnetic disk 562 to move toward the electromagnet 56, so that the magnetic disk 562 will not get stuck in the second branch pipe 35 and fall downward. The second branch pipe 35 falls into the storage tube 6 for centralized collection and storage, which is convenient for secondary use by the staff and improves work efficiency.

[0039] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A sampling device for soil environmental monitoring, comprising: A support (1), a sampling tube (3) and a base (4), characterized in that: a driving mechanism (2) is connected to the support (1), one end of the sampling tube (3) is connected to the driving mechanism (2), the base (4) is fixedly connected to one side of the support (1), a collecting mechanism (5) is installed on the top of the base (4), and a storage cylinder (6) is installed on one side of the base (4).

2. A sampling device for soil environment monitoring as claimed in claim 1, characterized in that: The driving mechanism (2) comprises a gasoline engine (21), a slider (22) and a weight (23); the output end of the gasoline engine (21) vertically penetrates the slider (22) and is fixedly connected to the top end of the sampling tube (3); the weight (23) is fixedly connected to the slider (22); a ratchet bar (24) is provided on the side of the bracket (1) connected to the slider (22); a square hole (25) is provided on the side of the slider (22) connected to the bracket (1); the end of the slider (22) away from the gasoline engine (21) is slidably connected to the bracket (1); a ratchet (251) is provided on the end of the weight (23) connected to the ratchet bar (24); the ratchet bar (24) meshes with the ratchet (251); and the weight (23) is slidably connected to the ratchet bar (24).

3. A sampling device for soil environment monitoring as claimed in claim 1, characterized in that: The sampling tube (3) is provided with a first branch tube (31) and a second branch tube (35). The end of the first branch tube (31) facing the ground is fixedly connected to a threaded sleeve (32). The end of the threaded sleeve (32) away from the first branch tube (31) is surrounded by a sharp corner. The first branch tube (31) is threadedly connected to the sampling tube (3). The end of the first branch tube (31) away from the ground is internally connected to a circular plate (33). A limit plate (34) is provided on the top of the circular plate (33). The limit plate (34) is fixedly connected to the first branch tube (31). The first branch tube (31) and the second branch tube (35) are both internally provided with a circular plate (33). The circular plate (33) is respectively connected to the first branch tube (31). The inner wall of the tube (31) and the inner wall of the second branch tube (35) are rotatably connected, the limiting plate (34) is annular and has an inner diameter smaller than the outer diameter of the first circular plate (33), the limiting plate (34) is a magnet, a second circular plate (36) is arranged at the bottom of the first circular plate (33), the second circular plate (36) is rotatably connected to the inner wall of the second branch tube (35), the second circular plate (36) extends into the first branch tube (31) and bends in the opposite direction of the tilting of the second circular plate (36); an inclined block (37) is fixedly connected to the inner wall of the top end of the sampling tube (3), the sampling tube (3) is provided with an outlet on one side of the inclined block (37), and a transport plate (38) is fixedly connected to the side of the outlet away from the inclined block (37).

4. A sampling device for soil environment monitoring as claimed in claim 3, characterized in that: An arc-shaped groove (311) is provided at the connection between the first branch pipe (31) and the second branch pipe (35); square blocks (312) are fixedly connected to the inner walls at both ends of the arc-shaped groove (311); a spring 1 (313) is fixedly connected inside the square block (312); a round ball (314) is fixedly connected to one end of the spring 1 (313) away from the square block (312); and a clamping block (351) is fixedly connected to the second branch pipe (35) at the arc-shaped groove (311); the middle parts of both sides of the clamping block (351) are concave inwards.

5. A sampling device for soil environment monitoring as claimed in claim 3, characterized in that: The collecting mechanism (5) comprises a motor (51), a fixing block (52) and a disc (53); the motor (51) is fixedly connected to the base (4); the fixing block (52) is arranged on one side of the motor (51); the fixing block (52) is fixedly connected to the base (4); a turntable 1 (54) is arranged on the top of the disc (53); the turntable 1 (54) is fixedly connected to the output end of the motor (51); a plurality of protrusions are fixedly connected on the circumference of the turntable 1 (54); each of the protrusions is fixedly connected to a rotating shaft (55); one end of the rotating shaft (55) is rotatably connected to an electromagnet (56); one end of the electromagnet (56) away from the rotating shaft (55) is rotatably connected to a turntable 2 (57); the bottom of the fixing block (52) is rotatably connected to a turntable 2 (57); the turntable 2 (57) is rotatably connected to the plurality of electromagnets (56).

6. A sampling device for soil environment monitoring as claimed in claim 5, characterized in that: The outer side of the circular disk (53) is connected to a plurality of collecting boxes (531); a second spring (561) is fixedly connected to the other side of the same surface where the electromagnet (56) is connected to the rotating shaft (55); a magnetic disk (562) is fixedly connected to one end of the second spring (561) away from the electromagnet (56); and an outer diameter of the magnetic disk (562) is smaller than an inner diameter of the limiting plate (34).

7. A sampling device for soil environment monitoring as claimed in claim 6, characterized in that: The storage tube (6) is fixedly connected to one side of the base (4), the opening of the storage tube (6) is located on one side of the turntable one (54), and the opening of the storage tube (6) is lower than the turntable one (54).

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